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Anthropic: Claude Opus 5 vs DeepSeek: DeepSeek V4 Flash 0731

On input price, DeepSeek: DeepSeek V4 Flash 0731 is ~11.4× cheaper. Verified 2026-10-21.

Anthropic: Claude Opus 5 $5.00/$25.00vsDeepSeek: DeepSeek V4 Flash 0731 $0.440/$1.32

Verdict

On blended price (3:1 input:output), DeepSeek: DeepSeek V4 Flash 0731 is ~15.2× cheaper ($0.440/$1.32 vs $5.00/$25.00 per 1M tokens). Anthropic: Claude Opus 5 scores higher on intelligence (63 vs 52, Artificial Analysis) — pay more only if that gap matters for your workload.

Pricing

Per-million-token list prices, verified 2026-10-21. Green marks the better value.

MetricAnthropic: Claude Opus 5DeepSeek: DeepSeek V4 Flash 0731
Input / 1M$5.00$0.440
Output / 1M$25.00$1.32
Cache read / 1M$0.500$0.014
Blended (3:1)$10.00/1M$0.660/1M
Estimated monthly costAnthropic: Claude Opus 5DeepSeek: DeepSeek V4 Flash 0731
Chatbot10,000 reqs · 800/400 tok$140.00$8.80
Coding agent5,000 reqs · 8000/2000 tok$450.00$30.80
RAG pipeline30,000 reqs · 4000/500 tok$975.00$72.60

Plug in your own numbers in the calculator, or paste a real bill into the Bill Shredder.

Specifications & capabilities

MetricAnthropic: Claude Opus 5DeepSeek: DeepSeek V4 Flash 0731
Context window1M1.0M
Max output128K131K
Vision input✓–
Tool calling✓✓
Reasoning✓✓

Quality

Intelligence Index by Artificial Analysis (independent evaluations, 0–100).

Intelligence Index — higher is better
Anthropic: Claude Opus 563
DeepSeek: DeepSeek V4 Flash 073152

Sources: Anthropic: Claude Opus 5 on Artificial Analysis · DeepSeek: DeepSeek V4 Flash 0731 on Artificial Analysis

Performance

Measured by Artificial Analysis on live endpoints.

Output speed — higher is better
Anthropic: Claude Opus 585 tok/s
DeepSeek: DeepSeek V4 Flash 0731200 tok/s
Latency (TTFT) — lower is better
Anthropic: Claude Opus 51,200 ms
DeepSeek: DeepSeek V4 Flash 0731450 ms
MetricAnthropic: Claude Opus 5DeepSeek: DeepSeek V4 Flash 0731
Cost per task$0.000025$0.000003

Provider

Infrastructure metrics for the organizations behind these models.

MetricAnthropicDeepSeek
Listed endpoints86
Reliability99.8%99.6%
Avg latency520 ms480 ms
Pricing tiersstandard, batchstandard, free

Full details: Anthropic: Claude Opus 5 pricing · DeepSeek: DeepSeek V4 Flash 0731 pricing